Disk wheel



UNWEEB Mansion nacnmfan, or new Yann,

BETHLEHEM STEEL COMPANY, BETELE-r 01? PENNSYLVANIA.

N. Y., ASSIGNOB, MISNE A'SIGNMENTS, T0

EM, PENNSLVANEA, lt GRPGBL'YI'IOIV` DISK VVHEEL.

rssaeaa Application filed November 1, 1918.

Toalt 'w/lom t may concern Be it known that f, Mai-;mon LACHMAN, a. citizen of the United States, and a resident of New York, in the county of New York and State of N ew York, have invented certain new and useful lfmprovements in Disk ll'lheels, of which the following is a specification.

lify invention relates to 'the construction of sl metal wheels and more particularly to Wheels of the disk type.

rlhe object of my invention is to simplify and cheapen the construction of this type of wheel by reducing the number of parts in the complete wheel and to enable the complete wheel'with tubular rim or felly and tubular hub to be constructed by simply assembling` duplicate struck-up Sheet metal Idisks together back to' back. w

My invention further consists in the novel form of strueknp sheet metal disks adapted for use in making disk wheels.

lin my improved wheel each half or duplicate of the wheel comprises essentially a sheet metal disk having two annular grooves one at its periphery and the other at or near its center. said peripheral grooved portions forminpj, in conjunction with the similarly grooved portions of the Companion or duplicate disk, a tubular rim or felly and a tubular hub when said disks are secured firmly together back to back as hereinafter more particularly described and shown.

My invention further consists of a sheet metal disk of the form above set forth and having the inner wall of the annular groove at the center extended inwardly as a strengthening fiange adapted to engage and be secured to a similar fiange on the compa-nion disk.

In the accompanying drawings, Figure 1 is a vertical central section of a wheel constructed in accordance with my invention from sheet metal disks formed as above described. p Fig. 2 is a plan of one of said disks from the inner side or face which, in the assembled wheel, is backed against the similar face of the Companion disk or duplicate.

Referring' to the drawings, 1 indicates the body or web part of the struck-up diskhavinf: preferably an extensive flat surface or area by which it may engage or seat against a duplicate disk in the completed wheel. 3

Specfication of Letters Patent. i Paten'g'gg 001;, 12, 192() SeriaI Ho. 260,650.

indicates a peripheral groove at the edge of the disk the enter wall or flange of which is adapted to meet, by its edge, the similar edge of the duplicate disk to close in the rim and complete the tubular structure of the rim or felly. Said flanges may be welded or otherwise secured together at their edges and if desired. for strengthening purposes, a ring 4 or other reii'iforcing` member may be inserted beneath said flanges and welded or secured to them, although the use of the ring 4, is not an essential of my invention in all cases.

5 indicates an annular groove or depressi on at or near the center of the disk, the annular walls 6 of which groove are adapted to meet, at their inner edges, the similar edges of the duplicate disk when the parts are seeurely fastened together., thereby forming` an annular tubular hub. Preferably the inner wall of the hub part is extended or continued inwardly as a fiange 7 the fiat face of which is adapted to meet and lie against the flat face of the duplicate disk in the completed wheel. The parts may be secured together in any desired manner, as for instance, by bolts running through the f-ubular hub at the points 8 or by other means. vFreferably, the disks or web parts lying flat against one another are spot welded at intervals indicated at 10 and likewise the fiangfes forming the outer walls of the peripheral grooves may be spot welded at intervals to the interior annular ring lying beneath` them, The engaging fianges 7 are rigidly secured together at their meeting faces by rivets or spot welds indicated at 11, thus attaining a very rigid and strong structure.

VVhat I claim as my invention is:

1. A sheet metal wheel having tubula-r hub and felly.I consisting of two struck-up metal disks fastencd together back to back each said disk having` an enterior peripheral groove, an interior groove at its hub part, a flat connectinp; web connecting said grooved parts and interior fiange forming` an eX- tension of the side wall of the rrooved hub portion and adapted to engage by its inner surface the inner surface of the fiange of the duplicate disk. h

2. A struck-up sheet metal disk adapted forA use in the construction of sheet metal Wheels and having at both center and rim an annular groove, the inner Wall of the groove :Lt the center being continued into a fiange :idapted to seat against the similar fiange of :1 dupliczate disk to complete the Wheel.

A sheet metal Wheel having tubnlai' rim and hub and comprsing two metal disks ai'mnged back to back, each said disk comprising an exteifor perpheral groove, an intei'ioi' groove at the hub part, a fiat Web conmeeting said grooved parts and an interior finnge forming an extension of the side Wall ti e grooved hub portion and adapted to 'e by its inner surface the inner surthe fieng'e of the duplicate chsk, said disks being rlgidly secured together at the nm anal. et said interior fienges.

Signed New 1' ork, in the county of New York and State of New York, this lstday ot Uctober, D. 1918.

MAURCE LACHMAN.

Witnesses C. F. TISCHNER, GEORGE E. BROWN. 

